任务档案 · MISSION

WorldView Legion 3 & 4

SpaceX · 猎鹰 9 Block 5 · 40 号发射工位 (SLC-40)

成功

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任务简介

WorldView Legion 是由 Maxar 公司建造并运营的地球观测卫星星座。该星座计划由 6 颗卫星组成，分布在极轨道和中倾角轨道上，提供 30 厘米级分辨率。

原文

↗ SpaceX

WorldView Legion is a constellation of Earth observation satellites built and operated by Maxar. Constellation is planned to consist of 6 satellites in both polar and mid-inclination orbits, providing 30 cm-class resolution.

飞行时间线 Flight Timeline25 节点

T−38:00

加注决议通过GO for Prop Load

Launch director verifies go for propellant load

T−35:00

推进剂加注开始Prop Load

Start of propelland loading

T−35:00

一级 LOX (液氧) 加注Stage 1 LOX Load

Start of liquid oxygen loading in the first stage

T−16:00

二级 LOX (液氧) 加注Stage 2 LOX Load

Start of liquid oxygen loading in the second stage

T−07:00

发动机预冷Engine Chill

Start of engine chilling

T−01:00

燃料箱增压Tank Press

Fuel tanks are pressurized to flight levels

T−01:00

自动倒数启动Startup

The onboard computer takes control over the countdown and runs last checks

T−00:45

发射决议通过GO for Launch

Launch director verifies go for launch

T−00:03

点火Ignition

Start of the engine ignition sequence

T+00:00

升空Liftoff

First upwards movement of the rocket

T+01:09

最大动压点Max-Q

Maximum dynamic pressure

T+02:15

主发动机关机MECO

Cut-off of the main engine

T+02:18

二级分离Stage 2 Separation

Separation of the second stage from the first

T+02:22

一级翻转机动Stage 1 Flip

Flip maneuver of the first stage

T+02:26

二级发动机第一次启动SES-1

First start of the second engine

T+02:31

助推器返回点火Booster Boostback Burn Startup

Start of the booster boostback burn

T+03:07

整流罩分离Fairing Separation

Separation of the payload fairing

T+03:27

助推器返回关机Booster Boostback Burn Shutdown

End of the booster boostback burn

T+06:05

再入减速点火Entry Burn Startup

Start of the atmospheric entry burn

T+06:24

再入减速关机Entry Burn Shutdown

End of the atmospheric entry burn

T+07:18

一级着陆减速点火Stage 1 Landing Burn

Start of the first stage landing burn

T+07:48

一级着陆Stage 1 Landing

Landing of the first stage

T+08:09

二级发动机第一次关机SECO-1

First cut-off of the second engine

T+47:21

载荷分离Payload Separation

Final deployment of the payload from the rocket

T+01:49:38

载荷分离Payload Separation

Final deployment of the payload from the rocket

任务更新18 条

00:5308/16

Cosmic_Penguin · 08/15

Launch success with signals acquired from satellites.